- Alps Electric Co., Ltd.
- NSK Needle Bearing Co., Ltd.
- Huasheng Electronics Co., Ltd.
- Kyocera Corporation
- Shanghai Kyocera Electronics Co., Ltd.
- Shinko Electric Industries Co. Ltd.
- SCHOTT GLASS GmbH
- SCHOTT Electronic Packaging
- SONY Corporation
- Daishinku Corporation
- Tokyo Denpa Co., Ltd.
- Opnext Japan Inc.
- Nihon Dempa Kogyo Co., Ltd.
- Hakodate NDK Co., Ltd.
- Panasonic Corporation
- Panasonic Semiconductor Discrete Devices Co., Ltd.
- Panasonic Semiconductor Parts (Suzhou) Co. Ltd
- Renesas Eastern Japan Semiconductor Inc.
- Saitama Business Innovation Center
- PC Brain Co. Ltd - laboratory utilizing the Home page as a tool to attract customers
